Mazda Motor Corporation

Takashi Kasai

Yoshitaka Wada

Masahiro Naito

Kazunori Hirasawa

Tetsuro Furuta

An exhaust pipe of an engine includes a crank-shaped pipe portion having a first bend and a second bend which guide exhaust gas to a mixer, and a straight pipe portion which is continuous with the second bend. The mixer is arranged in the straight pipe portion. An injector is attached to a portion of the second bend which faces the mixer. The injector has an injection axis which extends in a longitudinal direction of the straight pipe portion so as to point toward the mixer. A guide which guides a part of the exhaust gas from the first bend toward the injector is provided inside the crank-shaped pipe portion.

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Hiroshima, Japan

Takashi Kasai